PKI and PKIZ tokens contain unnecessary whitespace

[Dolph Mathews]

In the race to produce smaller PKI tokens, we've overlooked that we can produce smaller JSON bodies by removing all whitespace between structural characters. For example, the following JSON blobs are all equally valid:

  { "key" : "value" , "foo" : "bar" }

... as compared to what we're producing today:

  {"key": "value", "foo": "bar"}

... as compared to all unnecessary whitespace removed:

  {"key":"value","foo":"bar"}

This optimization would save us a few bytes in both PKI and PKIZ tokens.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/109343

[OpenStack Infra (hudson-openstack)]

Change abandoned by Dolph Mathews (<email address hidden>) on branch: master
Review: https://review.openstack.org/109343
Reason: if anyone is interested in picking this up, please do

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/120043
Committed: https://git.openstack.org/cgit/openstack/keystone/commit/?id=0b877af50e9ed62f8eeb82e11f8aa95d5db82626
Submitter: Jenkins
Branch: master

commit 0b877af50e9ed62f8eeb82e11f8aa95d5db82626
Author: Alexander Makarov <email address hidden>
Date: Tue Sep 9 13:28:31 2014 +0400

    PKI and PKIZ tokens unnecessary whitespace removed

    In the race to produce smaller PKI tokens, we've overlooked
    that we can produce smaller JSON bodies by removing all whitespace
    between structural characters.

    This patch offers a solution by overloading
    item_separator and key_separator in class SmarterEncoder
    used to produce json response.

    Change-Id: Id7fcc82a28359e85feac57f9469f2bcd9192ee50
    Closes-Bug: #1348262

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: feature/hierarchical-multitenancy
Review: https://review.openstack.org/138182

[OpenStack Infra (hudson-openstack)]

Change abandoned by Morgan Fainberg (<email address hidden>) on branch: feature/hierarchical-multitenancy
Review: https://review.openstack.org/138182